In the NBA, any shot made from 22 feet or more from the basket is worth 3 points. how many yards from the basket is that? plz help

Find the volume of the described solid.the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x.a) 441b) 147c) 864d) 882

Ineed in figuring out this problem.

What is the result of the following division?